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sUMMER sTOP
after cleaning the hearth, chimney and hood, totally eliminating the ash and other eventual residues, close all the doors of the hearth and
the relevant registers; in case you disconnect the appliance from the chimney you must close its openings in order to let work others possible
appliances connected to the same flue.
We suggest performing the cleaning operation of the flue at least once per year; verifying in the meantime the actual status of the rope seals,
which cannot ensure the good operation of the equipment if they are not in good condition and are not making a good seal! in this case the
seals must be replaced.
in presence of dampness in the room where the stove has been placed, we advise you to put absorbent salts into the hearth.
if you want to keep for long the aesthetic look of the cooker it is important to protect its internal walls in row cast iron with neutral
Vaseline.
Check the water level in the expansion tank and remove any air from the system by bleeding the radiators; also check to make sure that the
plumbing and electrical accessories (control unit, circulator) are working properly.
ATTENTION: for no reason must the fire be ignited before the system has been completely filled with water; doing this would lead
to serious damage of the entire structure. The installation must always be full of water even when the appliance is not used.
MAINTENANCE OF THE EXTENsIBLE gUIDEs
To work silently, as well as in a reliable and robust way, the doors are fastened to the extensible ball guides. By using the device continuously,
the lubricant of the guides tends to run out progressively in time making their sliding more difficult and noisy. for this reason, together with
each device a high temperature grease is supplied in order to make the lubrication of the guides possible for the user, in case it becomes
necessary (excessive noise or reduction of smoothness). after having completely lifted the door of the stack, using a syringe, apply internally
on the track on a visible point, as high as possible, two grease balls (corresponding to 0.5 ml of the graduated scale of the syringe).
pay attention not to exceed the suggested quantity. Repeat the same operation on the other track and lift and lower the door many
times so that the grease distributes on all balls.
CAUTION: use exclusively the grease supplied by La NORDICA.
MAINTENANCE ON THE WATER sYsTEM
excessive incrustation deposits on the inner walls of the hearth considerably reduce the efficiency of heat exchange; therefore,
remove these deposits using a steel brush whenever necessary. Never use corrosive substances that can damage the thermo-
fireplace and the boiler.
With the system switched off, once a year carry out the following checks:
Check the operation and efficiency of the blowdown and safety valves. if they are defective, contact your authorised installer. IT Is
•
sTRICTLY FORBIDDEN TO REMOVE OR TAMPER WITH THE sAFETY DEVICEs.
•
Check the thermal insulation of the filling pipe and the safety pipe.
•
Make sure that the system is filled and under pressure, checking the water level in the expansion tank; also check that it is working
properly and check the efficiency of the safety pipe.
CALCULATION OF THE THERMAL POWER
There is not an absolute rule for calculating the correct necessary power. This power is given according to the space to be heated, but it
depends also largely on the insulation. on an average, the calorific value necessary for a properly insulated room is 30 kcal/h per m
external temperature of 0°C).
Given that 1 kW corresponds to 860 kcal/h, it is possible to adopt a value of 35 W/m
Let's suppose one wishes to heat a room of 150 m
W/m
= 5250 W or 5,25 kW. as main heating, a 8 kW device is therefore sufficient.
3
Fuel
Dry wood (15% humidity)
Wet wood (50% humidity)
Wood briquettes
Brown coal briquettes
normal anthracite
Coke
natural gas
naphtha
electricity
(10 x 6 x 2.5 m) in an insulated apartment. in this case, it is necessary to have 150 m
3
Approximate combustion value
Unit
kcal/h
kg
3600
kg
1850
kg
4000
kg
4800
kg
7700
kg
6780
m
7800
3
L
8500
kW/h
860
ENgLIsH
.
3
Required quantity in relation to
1 kg of dry wood
kW
4.2
2.2
5.0
5.6
8.9
7.9
9.1
9.9
1.0
(for an
3
x 35
3
1,00
1,95
0,84
0,75
0,47
0,53
0,46
0,42
4,19
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